The interesting bit is, as he says, they have removed the bit about fully welding up the bias bar, and replaced that with "mechanical means eg. lockwiring"
Maybe this could be the first recorded insance of a govt dept appyling some common sense???
Anybody know how to 'find' the most up to date IVA manual? - IanK has a link to the updated manual, (24/5/2010) but it does not download
fully. (stops at 2.67 of 2.85meg?)
The interesting bit is, as he says, they have removed the bit about fully welding up the bias bar, and replaced that with "mechanical means eg.
lockwiring"
Maybe this could be the first recorded insance of a govt dept appyling some common sense???
I have a copy at work so can't send it you today, but I can confirm the welding has changed to a mechanical form of locking and it mentions lock
wiring - I was particularly interested in this bit as I don't weld!.
Someone will come along with the link soon
Kev
The paras below, copy and paste direct from the VOSA site. Good to see some common sense being applied at last.
BUT!!! Note 4 now outlaws the use of the old Fiat type hydraulic pressure limiter. Or any adjustable pressure limiter. Unless you can hide it. 
So, now all you have to do is tighten a nut up against the pivot assembly, and put a small hole through it with a split pin, or lockwire. Usually, if
they say 'lockwire', then that is what they want to see, even if a splipin is better in this case. And lockwire needs a smaller hole, so
less weakening of the bar.
Note 6 is new, and implies that if they find the adjustable brake bias reinstated, then they have the power to revoke your IVA Certificate.
Interesting. I wonder how long this check will take to reach the MOT test list?
[Note 4: Hydraulic valves that only operate automatically and react to vehicle loading or braking forces are permitted (Load Sensing and Gravity
valves) Manually adjusted valves (other than to permit presetting the automatic function of a valve) are not permitted to be fitted even if they are
rendered un-adjustable.
Note 5: Bias bars and other mechanical adjusting devices fitted to twin master cylinders must be rendered inoperable by mechanical means
e.g. lockwiring of components.
Note 6: Adjusting front/rear brake bias may invalidate approval and breach Construction and Use requirements. ]
Cheers,
Nev.
[Edited on 5/6/10 by Neville Jones]
This one works for me
quote:
Originally posted by Neville Jones
...Note 6 is new, and implies that if they find the adjustable brake bias reinstated, then they have the power to revoke your IVA Certificate. Interesting. I wonder how long this check will take to reach the MOT test list?...
I don't get it. On a road car, once your brake balance is set correctly, why would you need to adjust it? In reality, how many people actually do
adjust it, and isn't it potentially dangerous to do so?
Or have I missed something?
David
but if you take your road legal cars on track days you may well want to be able to play with the bias.
quote:
Originally posted by fha772
quote:
Originally posted by Neville Jones
...Note 6 is new, and implies that if they find the adjustable brake bias reinstated, then they have the power to revoke your IVA Certificate. Interesting. I wonder how long this check will take to reach the MOT test list?...
Note 6 is the wording of the sticker you have to put in the car, adjacent to the bias bar, it is required for IVA.
stevegough - 5/6/10 at 04:56 PMquote:
Originally posted by 40inches
This one works for me
I've tried your link - still only 2.62meg (of 2.85) - do you get it all?
40inches - 5/6/10 at 05:46 PMYep, no problem. Try letting it finish downloading(progress bar on lower right of screen)
before you open it, or save it to desktop using the inbuilt save button top left (the floppy symbol) or I can email you a copy
stevegough - 5/6/10 at 07:26 PMquote:
Originally posted by 40inches
Yep, no problem. Try letting it finish downloading(progress bar on lower right of screen)
before you open it, or save it to desktop using the inbuilt save button top left (the floppy symbol) or I can email you a copy
ok, left it for an hour while I had me dinner - now got it all! Thanks, 3ft 4 !
40inches - 5/6/10 at 08:19 PMquote:
Originally posted by stevegough
Thanks, 3ft 4 !
Neville Jones - 6/6/10 at 10:01 AMquote:
Originally posted by 40inches
quote:
Originally posted by fha772
quote:
Originally posted by Neville Jones
...Note 6 is new, and implies that if they find the adjustable brake bias reinstated, then they have the power to revoke your IVA Certificate. Interesting. I wonder how long this check will take to reach the MOT test list?...
Note 6 is the wording of the sticker you have to put in the car, adjacent to the bias bar, it is required for IVA.
Nothing in the latest release about a sticker, at least not in the section I'm referring to.
PeteS2k - 6/6/10 at 12:01 PMSection 9B, Required Standard 27
27.
Vehicles fitted with adjustable twin master cylinders that have been rendered inoperable by mechanical means to comply with RS 26 must have a label affixed on the master cylinder or the immediate vicinity with legible text as detailed in note 6.
But also, from the Version Control Notes...
Requirements relating to vehicles fitted with twin master cylinders have been amended and added requirement to label accordingly from 2/08/2010.
Which is strange, as it implies you can mechanically lock the bias bar now, but don't need to label it until August??
Neville Jones - 6/6/10 at 06:02 PMI missed that(obviously), right at the end.
With all the stickers needed, the fluid reservoir is going to need to be a 5l size container!
